Yeah plugs and leads are in the right order it's just not firring, I've just replaced the dizzy cap and rotar arm so there all new, I'll check the plugs tomorrow and see if it's that, I'll also try changing the leads over, but there brand new as we'll
This statement suggests that you should double check the firing order as per Dklawsons link and note that the order is:-
1342 counterclockwise. As Dk says if you have it wrong as per his description, it will give the symptoms you describe.